Flash Flood Warning Hawaii | Effective 03/21/2026 18:53

Headline: 
Flash Flood Warning issued March 21 at 3:53PM HST until March 21 at 5:45PM HST by NWS Honolulu HI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
March 21, 2026 - 6:53pm
Expires: 
March 21, 2026 - 8:45pm
Description: 
At 353 PM HST, radar indicated heavy showers have diminished over Lanai, with rain falling at a rate of up to 1 inch per hour. Flash flooding is ongoing. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. Some locations that will experience flash flooding include... Lanai City, Manele and Lanai Airport.
Instruction: 
Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry.
Area Description: 
Maui, HI
Forcast Office: 
NWS Honolulu HI